Spectacles.



.l 0 m 0, 3 .L p e S d e t n e t a P N.. E HL 0C CA .M HE .DI MS 4 7 8,9 0 7 0. N

(Application Bled June 19, 1902.)

(No Model.)

UNITED STATES PATENT OEEICE.

MOSES H. COHEN, OF MARSEILLES, ILLINOIS.

SPECTACLES.

sPcIEIcAT'toN arming part of Letcersratent No. 709,874., dated september3o, 1902.

Application led .Tune 19, 1902. Serial No.1121303. (No model.)

.To all whom it may clin/cern,.-

Be it known that I, MOSES H. COHEN, a citizen of the United States,residing at Marseilles, Lasalle county, Illinois, have invented certainnew and useful Improvements in Spectacles, of which the following is aspeciflcation.

My invention relates to that class of spectacles which has a pair ofmain lenses con-4 the supplementary lenses semi-oval and re-v movablymounted back of the main lenses and fitted for viewing objects near athand when used in connection with the main lenses, whereby the wearer isenabled to readily place the supplementary lenses in position and removethem therefrom while the spectacles are in use and may readilyemploy oneor both sets of lenses, as desired or as necessity may require.

The invention consists principally in a pair of main lenses which arepreferably oval in conformation Vand connected together by means of anose-bridge, which may be attached thereto in any ordinary and Wellknownmanner, and a pair of supplementary lenses, preferably semi-oval inconformation, removably mounted backof the main lenses with their topedges preferably substantially straight and extending horizontallycentral of the oval lenses when in use.

The invention consists, further, in a pair of lenses mounted in a mainframe consisting of a pair of rims and a nose-bridge connecting such`rims, and thereby the lenses, the outer ends of the rims being providedwith outwardly and rearwardly extending shoulders,

in which the bows are pivotally mounted, and a supplementary frameconsisting of a pair of rims connected together by means of ay bridgeadapted to extend over the nose-bridge of the main frame and havingshoulders extending from the outer ends of such rims over the shouldersof the main frame and removably resting thereon, and a pair of lensesmounted in such supplementary frame.

The invention consists, further and finally, in the features,combinations, and details of construction hereinafter described andclaimed.

In the accompanying drawings, Figure lis a view of the main framelooking at it from the top; Fig. 2, a view of the supplementaryframelooking at: it from the top; Fig. 3, a View of the main frame withthe supplementary frame in operative position looking at them from thetop; Fig. 4, a View in elevation of the supplementary frame and lenses;

Fig. 5, a View in elevation of the main frame and supplementary framelooking at them from behind; and Fig. 6, a detail view of one of theshoulders of the main frame, showing the pivotal connection with thebow.

In constructing a pair of spectacles in accordance with my improvementsI provide a main frame a, consisting of a pair of rims b, which areconnected together by means of a nose-bridge c. The outer end of eachrim may be provided with an outwardly and rearwardly extending shoulderd, in which the bows are pivotally mounted. The bridge c consists of anupwardly-curved central portion connected with the rims, and therebyoperatively with the lenses, by means of rearwardly-extending stemportions f, which are preferably integral with suchcurved centralportion. These rearwardly-extending stem portions of the nose-bridgeshould be of suflicient length to admit of mountinga supplementaryYframe, hereinafter described, back of. and substantially parallel withthe main frame. A pair of lenses, which may be of any ordinary andwell-known type and of suitable focal curvature to lit the eyes of thevwearer and which may, if desired,'be particularly adapted for use inviewing objects 'at a distance, is mounted in the main frame,

such lenses and the rims of the main frame being in most instancespreferably oval and accurately tted together in the ordinary manner. Ithen provide a supplementary frame h, consisting of a pair of rims t',in which the lenses j are mounted. These supplementary lenses are inmost instances pref- IOO erably semi-oval in contour, the upper edgebeing substantially straight and adapted to extend horizontally andcentrally across the main oval lenses when in position and the loweredges being substantially of the same shape as those of the main lenses.By this arrangement when the supplementary lenses are in position backof the main or oval lenses the wearer will when looking downwardly seethrough the lower portion of the main lenses and also through thesupplementary lenses, which cover the lower half of the main lenses,leaving the upper half exposed. It follows as a matter of course thatwhen the eyes of the wearer are raised, as they would naturally be inlooking at objects at a distance, he will see through the main lensesonly. The main lenses are therefore made, as above mentioned, of suchcurvatn re as to be best suited to the purpose of observing objects at adistance, and the supplementary lenses are of such curvature as to titthe eyes of the wearer when used in combination with main lenses and forthe purpose of observing objects near at handhas, for instance, inreading.

In order to enable the supplementary lenses to be readily placed inposition back of the main lenses, so that the lower half only of themain lenses will be covered thereby and the above desirable objectseiiciently accomplished, the supplementary lenses are connected by meansof a bridge k, which is of metal and yadapted to extend ove1` the stemportions of the nose-bridge and is curved, as shown, so as in no way tointerfere with the functions of the nose-bridge, and such supplementaryor semi-oval lenses are provided at their outer ends, substantially on aline with the upper edge thereof, with shouldersl and m, extendingoutward longitudinally therefrom and which may be attached thereto bymeans of the rims or in any ordinary and well-known manner commonlyemployed in attaching lugs to lenses. These lugs may be provided withdownwardly and inwardly extending hook portions n and o, which serve tohold the supplementary lenses in position upon the main frames byremovably and yieldingly engaging with the end lugs of the main frame.The natural spring of the connecting-bridge of the supplementary frameis ordinarily sufcient to produce the desired effect. The end lug Z isalso provided with a handles, by means of' which the supplementaryframe, with its lenses, may be readily placed in position and removedtherefrom while the spectacles are in use.

The end lugs d of the main frame are preferably provided with arearwardly-projecting portion p, in which the bows are mounted by meansot' pivots q, extending through horizontal perforations r in such lugs,and when the supplementary frame is placed in position back of the mainlenses its shoulders rest upon the backwardly-extending shoulders of themain frame, and it is thus held removably in position.

I claiml. In spectacles of the class described, the combination of apair of main lenses, anosebridge connecting such lenses, an outershoulder for each lens attached thereto and extending outward andbackward from the outer end thereof, a detached pair of supplementarylenses provided with a bridge extending over the nose-bridge andconnecting such supplement-ary lenses, and a shoulder attached to theouter ends of such supplementary lenses and extending outward over theouter shoulders of the main lenses, substantially as described.

2. In spectacles of the class described, the combination of a pair ofmain lenses, a nosebridge extending upward and backward from the innerends of such lenses and in operative connection therewith, a shoulderattached to and extending outward and backward from the outer end ofeach lens, a detached pair of supplementary lenses removably mountedback of the main lenses, a bridge attached to the supplementary lensesconnecting them and extending over the nosebridge of the main lenses,and a shoulder attached to and extending outward from the outer end ofeach supplementary lens and having a downwardly and inwardly extendingportion adapted to yieldingly engage the shoulder on the adjacent mainlens, substantially as described.

3. In spectacles of the class described, the combination of a pair ofoval lenses provided with a nose-bridge operatively connecting the innerends thereof and extending backwardly and upwardly, a detached pair ofsemi-oval lenses removably mounted back of the main lenses having theirtop edge extending horizontally central of the main lenses, a bridgeextending over the nose-bridge of the oval lenses and connecting thesupplementary lenses, and means for yieldingly and removably connectingthe supplementarylenses with the oval lenses, substantially asdescribed.

l. In spectacles ot' the class described, the combination of a pair ofmain lenses, a pair of rims in which such lenses are mounted providedwith a nose-bridge extending from and connecting the inner ends of suchrims and thereby the lenses and forming a main frame, a shoulder on theouter end of each rim extending outwardly and backwardly therefrom, abow pivotally mounted in each of the shoulders, a supplementary frameconsisting of a pair of rims and a connecting-bridge removably mountedback of the main lenses, a detached pair of supplementary lenses in suchframe, a connecting-bridge in the supplementary frame extending over thenose-bridge of the main lenses and connecting the rims of thesupplementary frame and thereby the supplementary lenses, and

IOO

IIO

a shoulder upon theouter end of each rim of l 6. In spectacles of theclass described, the

the supplementary frame extending outward over the shoulders of the mainframe and resting removably thereon, substantially as described.

5. In spectacles of the class described, the combination of a main frameconsisting of a pair of rims and a nose-bridge connecting the inner endsof such rims, a shoulder extending outwardly and backwardly from theouter end of each rim, a bow pivotally mounted in each shoulder, a pairof oval lenses mounted in such main frame, a supplementary frameremovably mounted back of the main frame having shoulders extendingoutward from the outer ends thereof over and resting removably upon theshoulders of the main frame, and a pair of substantially semi-ovallenses mounted in such supplementary frame and having their top edgesextending horizontally centrally of the oval lenses, substantially asdescribed.

combination of a main frame having a nosebridge extending backward andupward 25 therefrom and provided with end shoulders extending outwardand backward from the outer ends thereof, a pair of lenses mounted insuch main frame, a detached supplementary frame consisting of a pair ofrims hav- 3o ing a connecting-bridge adapted to extend over thenose-bridge of the main frame, a pair of shoulders extending outwardlongitudinally of the supplementary frame over the shoulders of the mainframe, each having a 35 downwardly-extending hook portion for engagingashoulder of the main frame, and f` a pair of semi-oval lenses mountedin the supplementary frame, substantially as described.

MOSES H. COHEN.

Witnesses:

HARRY I.` CROMER, ANNIE C. COURTENAY.

